This is a antique vintage Sireno model 7 copper 12 to 24 volt DC siren in good and loud working condition we tested it with a 12 volt car battery , it does have spots of paint loss as seen in photos...

This is a great item if you are restoring a vintage Firetruck , Police Car , Ambulance , Hearse , Military Vehicle , Tow Truck Wrecker or a Rat Street or Hot Rod...